Mechanical movement



(N9 Mel) 0. M. MORSE.

' MECHANICAL MOVEMENT, No. 263,717. Patented Sept. 5, 1882;

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- UNITED STATES PATENT OFFICE.

ORVILLE M. MORSE, OF SPRINGVILLE, NEW YORK.

MECHANICAL MOVEMENT.

SPECIFICATION forming partof Letters Patent No. 263,717, dated September5, 1882,

Application filed February 2,1ss2. (No model.)

To all whom it may concern:

Be it known that 1,0RVILLE M. MORSE, of Springville, in the county ofErie and State of New York, have invented new and useful ImprovementsinMechanical Movements,ofwhich the following is a specification.

This invention has for its object the production of a simple mechanismwhereby several reciprocating movements are imparted to a rock-arm,sliding bar, or other part by a single revolution of a shaft.

Myinvention consists tothat end,principally,

of a cam rotating about its center and constructed with an odd number offaces, each face being curved from the diametrically-opposite corner ofthe cam as a center, and the cam being confined between two fixed jaws,which are attached to the rock-arm, sliding bar, or other part to whicha reciprocating motion is to be imparted also, of certain details ofconstruction of the cam and rock-arm, as hereinafter more fully setforth.

In the accompanying drawings, Figure l is a side elevation of the end ofa mill sieve or bolt to which my invention is applied for actuating theknocker. Fig. 2 is a horizontal section in line w a, Fig. 1. Fig. 3 is ahorizontal section in line y 3 Fig. 1. Figs. 4 and 5 are side elevationsof cams having respectively three and five faces.

Like letters of reference refer to like parts in the several figures.

A represents the end of a mill-sieve,which is struck or jarred atregular intervals by a knocker, B. The latter is attached to a slenderarm, 0, which is secured with its opposite end to the frame D of theseparating-machine by means of anadjustable plate, D, and which issufficiently elastic to enable it to be deflected. 1 The plate D isprovided with ,a longitudinal slot, d, through which passes thefastening-bolt 01. By adjusting the plate D on the bolt cl. the adjacentend of the knocker-arm G can be drawn toward the frame of the machine orbe removed therefrom at desire.

E represents the rotating cam by which the I knocker-arm is actuated.This cam, as shown in Fig. 1,is constructed with three equal faces,

'0, arranged around the center of rotation of the cam, and each curvedin the arc of a circle described from the diametricallyopposite cornerofthe cam as a center. In other words, the three corners of the cam lieinthe corners of an equilateral triangle, and are connected by facescurved parallel with the arcs of circles described from these corners.The cam is secured to arotating shaft, f, which passes centrally throughthe cam, so that the corners of the cam are equidistant from its axis ofrotation.' A greater number of faces than three may be employed-forinstance, five, as repre sented in Fig. 5but the number must be unevenand the faces must be curved in the arcs of circles described from thediametrically-opposite corner as a center.

g g represent two fixed jaws between which the cam is confined, thewidth of the spacebetween the jaws being made equal to the radius of thecurved faces of the cam. When the cam and the jaws are constructed asherein described the space between the jaws will be entirely filled bythe cam in all positions of the latter, whereby all lost motion will beavoided and a steady and quick reciprocating motion will be imparted tothe rock-lever or other part by the cam, since each revolution of thecam imparts as many double strokes to the actuated part as there arefaces on the cam.

The actuated part will be moved in both directions by the cam and jawswithout the employment of springs, which latter are objectionable, asthey are liable to lose'their power. Thecam is provided with projectingcircular flanges h, which overlap the jaws g and prevent lateraldisplacement of the parts.

By adjusting the lower end of the knockerarm 0 toward the machine-framethe intensity of the blow delivered by the knocker upon the sieve-frameA is decreased, and by a reverse adjustment the intensity of the blow isincreased.

The cam maybe connected with a sieveframe when it is desired to actuatea reciprocatin g sieve, or to any other movablepartwhich it is desiredto actuate in the above-described manner.

I claim as my invention- 1. The combination of a cam, E, rotating aboutits center and having an uneven number of equal faces, 0, each curved inthe arc of a circle described from the diametrically-oppojaws, 9,between which the cam is confined,

and which are attached to the part to be actuated, whereby eachrevolution of the cam imparts as many double strokes to the actuated 5part as there are faces on the cam.

2. The combination with a cam, E, provided with faces 6, constructed asdescribed, and having marginal circular flanges h, of the jaws g,bearing against opposite sides of the cam,

10 between the circular flanges of the same, and

attached to the part to be actuated, substantially as set forth.

3. The combination, with a cam,E,provided with faces 0, constructed asdescribed, of a rock-arm, 0, provided with jaws g, bearing againstopposite sides of the cam, and an adjustable plate, D, whereby therock-arm O is attached to the machine, substantially as set forth.

ORVILLE M. MORSE.

Witnesses:

JNo. J. BONNER, EDW. J. BRADY.

